可作为流动控制设备优化工具的立体PIV测量技术

2012/02/02   下载量： 5 次

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应用领域 其他
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Active flow control earns growing interest for manufacturers of large transport aircraft because of the constant need to improve these aircraft in terms of less fuel consumption, higher efficiency, steep approaches and departures and less weight. Flow control devices that are based on fluidic actuators, e.g. vortex generator jets (VGJs), have shown a promising potential to influence separating boundary layers and keep them attached (e.g. Godard & Stanislas (2006a‐c); Johari. & Rixon (2003); Johnston & Nishi (1990); Mc Manus et al. (1996); Ortmanns et al. (2008a); Pauley & Eaton (1988); Scholz et al. (2006)). For an efficient operation such devices need to be optimized regarding their ability to influence the flow. However, optimization turns out to be very challenging because of the vast parameter space and the lack of an adequate “figure of merit”. The proposed contribution will discuss the possibility to assess and optimize such devices by analyzing the velocity fields from stereoscopic PIV measurements.

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北京欧兰科技发展有限公司
金牌会员 丨 第17年
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